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Re: [Qemu-devel] virtio-pci msix error
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From: |
Peter Maydell |
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Subject: |
Re: [Qemu-devel] virtio-pci msix error |
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Date: |
Wed, 20 May 2015 11:41:59 +0100 |
On 20 May 2015 at 10:58, Michael S. Tsirkin <address@hidden> wrote:
> On Tue, May 19, 2015 at 09:11:26PM +0100, Peter Maydell wrote:
>> On 19 May 2015 at 20:16, Michael S. Tsirkin <address@hidden> wrote:
>> > On Tue, May 19, 2015 at 08:54:36AM -0700, Richard Henderson wrote:
>> >> Re patch c7ff5482. What's the point of this error?
>> >> It's going to always appear for older targets that
>> >> predate such new fangled things as msix.
>> >>
>> >> Obviously the patch has been there a while, and it's
>> >> not actually causing any problems, but today it got
>> >> on my nerves...
>>
>> > So don't specify nvectors > 0 for these platforms then?
>>
>> How do you do that? I did a quick 'git grep' for nvectors
>> and none of the hits are in platform-dependent code...
>>
>> Why can't the virtio-pci device automatically detect
>> whether the PCI bus it's plugged into supports MSIx
>> and just do the right thing?
> I mean why does *user* specify nvectors > 0?
The user isn't specifying nvectors at all. That's why
the message is annoying...
-- PMM